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At a glance
Measured figures
Chinook HC6A · Length
Single sourceChinook / RAF specification (variant not stated) · Length · Length
Single sourceConfiguration
| Specification | Boeing Chinook (UK variants) | Kaman SH-2 Seasprite |
|---|---|---|
| Type | Transport helicopter[source] | Anti-submarine warfare helicopter[source] |
| Manufacturer | Boeing Defense, Space & Security[source] | Kaman Aircraft Corporation[source] |
| Designer | Boeing-Vertol[source] | — |
| Status | In service[source] | Partially retired; G model in service[source] |
SH-2F Seasprite · nose and blades folded
Single source38 ft 4 in (11.68 m) nose and blades folded[source]
Chinook HC6A · 2 ×
Single sourceChinook / RAF specification (variant not stated) · Rotor diameter · Rotor
Single source2 × 60 ft 0 in (18.29 m)[source]
18.29m[source]Chinook / RAF specification (variant not stated) · Rotor
SH-2F Seasprite · Main rotor diameter
Single source44 ft 0 in (13.41 m)[source]
Chinook HC6A · Height
Single sourceChinook / RAF specification (variant not stated) · Height · Height
Single source18 ft 8 in (5.69 m)[source]
5.77m[source]Chinook / RAF specification (variant not stated) · Height
SH-2F Seasprite · to top of rotor head
Single source13 ft 7 in (4.14 m) to top of rotor head[source]
Empty; Chinook HC6A · Empty weight
Single sourceGross; Chinook HC6A · Gross weight
Single sourceMaximum take-off; Chinook HC6A · Max takeoff weight
Single source22,450 lb (10,183 kg)[source]
26,680 lb (12,102 kg)[source]
50,000 lb (22,680 kg)[source]
Empty; SH-2F Seasprite · Empty weight
Single sourceMaximum take-off; SH-2F Seasprite · normal max
Single sourceChinook HC6A · pilot, copilot, two weapon system operators/loadmasters
Single source4 (pilot, copilot, two weapon system operators/loadmasters)[source]
2 Pilots, 2 Weapon System Operators[source]Chinook / RAF specification (variant not stated) · AircrewSource text · numeric interpretation needs review
SH-2F Seasprite · (Pilot, Co-pilot/Tactical Coordinator (TACCO), Sensor Operator (SENSO))
Single source3 (Pilot, Co-pilot/Tactical Coordinator (TACCO), Sensor Operator (SENSO))[source]
Maximum; Chinook HC6A · Maximum speed
Single sourceMaximum; Chinook / RAF specification (variant not stated) · Maximum speed · Maximum speed
Single source160 kn (180 mph, 300 km/h)[source]
160kt[source]Chinook / RAF specification (variant not stated) · Maximum speed
Cruise; SH-2F Seasprite · Cruise speed
Single sourceMaximum; SH-2F Seasprite · at sea level
Single sourceChinook HC6A · 2 × Honeywell T55-GA-714A turboshaft free-turbine engines, 3,750 shp ( ) each
Single source2 × Honeywell T55-GA-714A turboshaft free-turbine engines, 3,750 shp (2,800 kW) each[source]
SH-2F Seasprite · 2 × General Electric T58-GE-8F turboshaft engines, 1,350 shp ( ) each
Single source2 × General Electric T58-GE-8F turboshaft engines, 1,350 shp (1,010 kW) each[source]
SH-2F Seasprite · with 2 external tanks
Single source5 hours with 2 external tanks[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Primary user | Royal Air Force[source] | — |
|---|
| Number built | 72 (all RAF models)[source] | 184[source] |
|---|
| Introduction date | 22 November 1980 (with RAF)[source] | December 1962[source] |
|---|
| First flight | 23 March 1980 (HC1)[source] | 2 July 1959 (HU2K-1)[source] |
|---|
| Developed from | Boeing CH-47 Chinook[source] | — |
|---|
| Variants | HC1, HC1B, HC2, HC3, HC4, HC5, HC6, HC6A, HC7[source] | — |
|---|
| Capacity | 55 soldiers and up to 10 tonnes of freight or equipment[source] | 1 pax with litter patient (with LAMPS installed) / 4 pax and two litter patients (with Sonobuoy launcher removed)[source] |
|---|
| Guns | 2× M134 Miniguns and 1× M60 machine gun[source] 2 x M134 Miniguns, 1 x M60 Machine Gun[source]Chinook / RAF specification (variant not stated) · Guns | — |
|---|
| Main rotor area | 5,655.2 sq ft (525.39 m 2 )[source] | 1,520.53 sq ft (141.262 m 2 ) 4-bladed main and tail rotors[source] |
|---|
| Blade section | - root: Boeing VR-7; tip: Boeing VR-8[source] | — |
|---|
| Cockpit Avionics | Glass cockpit with a BAE Systems Digital Advanced Flight Control System (DAFCS), includes automatic modes such as auto-hover and auto-descend to ease pilot workload.[source] | — |
|---|
| Sensors | Electro-Optical Sensor Turret (EOST) with two infrared cameras and a low-light TV function .[source] EOST turret including two infrared cameras and a low-light TV function[source]Chinook / RAF specification (variant not stated) · Electro optics | — |
|---|
| Defensive Aids | Missile Warning Receiver, Infrared Warning Receiver, Radar Warning Receiver, Counter-measure dispensing system (flares).[source] | — |
|---|
| Country of origin | United States[source]Boeing Chinook (UK variants) · origin explicitly stated in the linked current national-inventory row; no inference from operator or shipyard | United States[source] |
|---|
| Powerplant | Two Honeywell 55-L-714A Free-Turbine engines[source]Chinook / RAF specification (variant not stated) · Powerplant | — |
|---|
| Reported engine rating | 4,168shp each[source]Chinook / RAF specification (variant not stated) · ThrustSource text · numeric interpretation needs review | — |
|---|
| Flight altitude | 15,000ft[source]Chinook / RAF specification (variant not stated) · Maximum altitude | — |
|---|
| Primary users | — | United States Navy (historical) Royal New Zealand Air Force Polish Navy Egyptian Navy[source] |
|---|
| Manufactured | — | 1959–1969 1971–1990s: F/G model and conversions[source] |
|---|
| Retired | — | 1993: F ( United States Navy ) 2001: G (USN) 2008: Royal Australian Navy[source] |
|---|
| Variant | — | Kaman SH-2G Super Seasprite[source] |
|---|
| Fuel capacity | — | 396 US gal (330 imp gal; 1,500 L) internal fuel tanks; 120 US gal (100 imp gal; 450 L) auxiliary external fuel tanks.[source] |
|---|
| Hardpoints | — | 2× side fuselage mounting stub/pylon stations[source] |
|---|
| Maximum overload take-off weight | — | 13,300 lb (6,000 kg)[source] |
|---|
| Rotor blade section | — | - root: KM23014.86; tip: KM23011.47[source] |
|---|
| Hover ceiling IGE | — | 18,600 ft (5,700 m)[source] |
|---|
| Hover ceiling OGE | — | 15,400 ft (4,700 m)[source] |
|---|
| Missiles | — | Non-US aircraft carry a variety of guided missiles , including the AGM-65 Maverick (often used in the anti-ship role) and dedicated anti-ship missiles .[source] |
|---|